in an interview today on "good morning america," investigators say they're not ruling out anything and they consider hutcherson a person of interest. >> right now, we believe that mr. hutcherson is a person of interest that we need to locate as quickly as possible. obviously, his vehicle is very distinctive and we just need to find him as quickly as possible and try to see if he can lead us to tiffany and come to a safe conclusion in this case. >> david tehan, tiffany's husband, said he's shocked by the surveillance footage. doesn't know who hutcherson is. the tehan's have a 1-year-old daughter. >>> cal penn is okay after being mugged at gun point. it happened yesterday in washington. two officials told our sister network cnn penn's wallet and cell phone were taken but he was not seriously injured. there's been no word from penn on the matter, though. >>> they may not run as fast as they did in their 20s or go for as many balls, but as dr. sanjay gupta reports, a team of self-professed old guys refuse to stop playing their favorite sport. >> reporter: they call themselves old guys. but